Kuala Lumpur International Airport (KLIA) (IATA: KUL) is Malaysia's main international airport and one of the major airports of South East Asia. Built at a cost of US$3.5 billion in Sepang district of Selangor, it is located approximately 45 kilometres (28 mi) from Kuala Lumpur city centre and serves the Greater Klang Valley conurbation.
KLIA is the largest and busiest airport in Malaysia. In 2014, it handled 48,930,409 passengers and 753,899 tonnes of cargo. It is the world's 20th-busiest airport by total passenger traffic, 13th-busiest airport by international passenger traffic, and 28th-busiest airport by cargo traffic.
The airport is operated by Malaysia Airports (MAHB) Sepang Sdn Bhd and is the major hub of Malaysia Airlines, MASkargo, AirAsia, AirAsia X, and Malindo Air. Wikipedia